High Quality Blue Spring Steel Strip High Carbon in Coils for Sale Factory

In order to continue to strengthen our Triangle spring steel wire factory, Alloy spring steel EN10270-2, D-shaped spring steel wire JIS G3561 and deliver more sophisticated features and performance, we are harnessing some of the latest technological improvements. We know that as a successful company, teamwork is very important to us, hence we require our employees to unite and cooperate to complete each job. Therefore, we welcome all types of talents to join with us. Our company is an honest and trustworthy enterprise, and has won the recognition and support of employees, suppliers and customers. In recent years, we have achieved rapid development and continue to promote product upgrades, and our products are well received by customers all over the world.

Characteristics and scope of application:

Is widely used in Si Mn spring steel, strength, elasticity and hardenability, slightly higher than 55Si2Mn. Suitable for railway vehicles, automobile and tractor industry production bear a larger load or a flat spring wire diameter in the spiral spring, below 30mm is suitable for the production of temperature at 250 DEG C nonrefractory spring corrosion medium and under alternating load and in large type under high stress the importance of working roll spring.

Chemical composition:

C:0.56 to 0.64

Si:1.60 to 2

Mn:0.60 to 0.90

S: = 0.030

P: = 0.030

Cr: = 0.35

Ni: = 0.35

Cu: = 0.25

Mechanical properties:

The ultimate tensile strength of B (MPa): 1568 (160)

Yield strength s (MPa): 1372 (140)

10 elongation (%): 5

Section shrinkage (%): 20 PSI

The hardness is less than or equal to 321HB;: hot rolling, cold drawing + heat treatment, less than 321HB

Specification and metallographic structure of heat treatment:

Specification for heat treatment: quenching at 870 + 20 C, oil cooling; tempering at 440 C + 50 C (special needs, + 30).

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